2004-24-09: Fuel nozzle

2004-24-09 Rolls-Royce Corporation: Amendment 39-13885. Docket No. 2004-NE-10-AD. Effective Date (a) This airworthiness directive (AD) becomes effective January 5, 2005. Affected ADs (b) None. Applicability (c) This AD applies to Rolls-Royce Corporation (formerly Allison Engine Company, Allison Gas Turbine Division, and Detroit Diesel Allison) (RRC) 250-B and 250-C series turboshaft and turboprop engines in the following Table 1: Table 1.--250-B and 250-C Series Turboshaft and Turboprop Engines Affected -B15A -B15E -B15G -B17 -B17B -B17C -B17D -B17E -B17F -B17F/1 -B17F/2 -C18 -C18A -C18B -C18C -C20 -C20B -C20C -C20F -C20J -C20R -C20R/1 -C20R/2 -C20R/4 -C20S -C20W -C28 -C28B -C28C -C30 -C30G -C30G/2 -C30M -C30P -C30R -C30R/1 -C30R/3 -C30R/3M -C30S -C30U -C40B -C47B -C47M These engines are installed on, but not limited to, Agusta Models A109, A109A,A109AII, and A109C; Bell Helicopter Textron Models 47, 206A, 206B, 206L, 206L-1, 206L-3, 206L-4, 407, and 430; B-N Group Models BN-2T and BN-2T-4R; Enstrom Models TH28, 480; and 480B; Eurocopter Canada Limited Model BO 105 LS A-3; Eurocopter France Models AS355E, AS355F, AS355I, and AS355F2; Eurocopter Deutschland Models BO-105A, BO-105C, BO-105S, and BO-105LS A-1; Hiller Aviation Model FH-1100; McDonnell Douglas 369D, 369E, 369F, 369H, 369HE, 369HM, 369HS, 369FF, and 500N; Schweizer TH269D; SIAI Marchetti s.r.l. Models SF600 and SF600A; and Sikorsky S-76A helicopters and airplanes. Unsafe Condition (d) This AD results from 10 reports of engine power loss with accompanying collapse of the screen in the fuel nozzle, due to fuel contamination. We are issuing this AD to minimize the risk of sudden loss of engine power and uncommanded shutdown of the engine due to fuel contamination and collapse of the screen in the fuel nozzle. Compliance (e) You are responsible for having the actions required by this AD performed within the compliance times specified unless the actions have already been done. (f) Perform a onetime inspection of the fuel nozzle screen for contamination, within 150 operating hours after the effective date of this AD. (g) Inspect and clean the entire aircraft fuel system before further flight if there is any contamination on the screen. (h) Remove from service fuel nozzles, part numbers (P/Ns) 6890917, 6899001, and 6852020, and replace with a serviceable fuel nozzle, at the next fuel nozzle overhaul after the effective date of this AD, or by June 30, 2006, whichever occurs first. Definition (i) For the purposes of this AD, a serviceable fuel nozzle is defined as a nozzle that has a P/N not specified in, or addressed by, this AD. Alternative Methods of Compliance (j) The Manager, Chicago Aircraft Certification Office, has the authority to approve alternative methods of compliance for this AD if requested using the procedures found in 14 CFR 39.19. Related Information (k) Information related to the subject of this AD can be found in Rolls-Royce Corporation Alert Commercial Engine Bulletin, with the identification numbers of CEB-A-313, CEB-A-1394, CEB-A-73-2075, CEB--A-73-3118, CEB-A-73-4056, CEB-A-73-5029, CEB-A-73-6041, TP CEB- A-183, TP CEB-A-1336, and TP CEB-A-73-2032, dated September 4, 2003. Material Incorporated by Reference (l) None.